Automatic paper pulp regulator



July 17, 1934. w R, MORGAN 1,966,638

AUTOMATIC PAPER PULP REGULATOR Filed Jan. 20, 1934 arvuv/wto't W 13Morgan vWMW Patented July 17, 1934 AUTOMATIC PAPER PULP REGULATOR WilliamR. Morgan, lienosha, Wis.

Application January 20,

4 Claims.

This invention relates to paper making machines and systems connected tothe paper making machine, and has for an important object thereof theprovision of a means inserted in the system connected to the papermaking machine for controlling the quality of the pulp as it passesthrough the system.

Another object of this invention isto provide a means in the system ofthe paper making machine for regulating the moisture content of the pulpso that the moisture content will be at the right degree when the pulpreaches the paper machine, thereby permitting the pulp to be spreadevenly in the machine and insuring paper of an even thickness.

The above and various other objects and advantages of this inventionwill in part be described and in part be understood from the followingdetailed description of the present preferred embodiment, the same beingillustrated in the accompanying drawing wherein the figure is a viewpartly in elevation and partly in vertical section of the pulpcontrolling device embodying the present invention.

Referring to the drawing wherein like numerals of reference designatecorresponding parts throughout the view the numeral 10 designatesgenerally a pipe which is connected at one end to a source of pulpsupply and which has interposed intermediate its length "a pump (notshown) for the purpose of forcing the paper pulp through the pipe 10.

A stock tank or containerll is connected to the pipe 10 and preferably,the pipe 10 connects to the bottom of the stock tank or reservoir 11,and a partition 12 divides the reservoir or stock tank 11 into two pulpreceiving chambers 13 and 14. The chamber 13 is an overflow chamber andpreferably the top of the partition 12 is disposed below the top of thetank or reservoir 11 so that the overflow of stock will pass over theupper edge of the partition 12 and will then pass downwardly through anoverflow pipe 15, which is connected to a suitable suction means and thepulp is then passed into the system again.

A pipe 16 is connected at one end to the side wall 17 of the reservoir11 and a gate or valve member 18 is carried by the side wall 17 and isprovided with a threaded shaft or stem 19 engaged by a thumb screw ornut 20, so that the discharge opening 21 of the tank or reservoir 11 canbe regulated at will. The valve member 18 is in the form of a plateslidable vertically and suitable guide means may be pro- 1934, SerialNo. 707,580

vided on the inside of the end wall 17 to slidably hold the plate orvalve member 18 in position against the end 17.

The pipe 16' is provided with a bent or goosene-ck portion 22 adjacentthe opposite end thereof, and a plug 23 is threadably disposed in thelower portion of this bent portion 22 so that water or pulp may bedrained out of the trap or returned portion of the pipe 16.

A container or tank 24 has the bottom 25 thereof connected to theopposite end of the pipe 16, and the container 24 is provided with anoutlet port 26 at a point in'the side wall thereof adjacent the upperedge. A float or hollow member 27 is loosely disposed within the tank orcontainer 24 and is provided with a stem or shaft 28, which slidesthrough and extends above the top 29 of the tank or container 24. A gatevalve 30 is disposed across the outlet port 26 and is movable into openor closed position by a thumb nut or manually operable member 31, whichengages a threaded stem 32 carried by the plate or valve member 30. Thefloat 27 is provided at the bottom thereof with a weight 33 and also hasa second or upper weight 34 on the top thereof. These weights 33 and 34act to automatically force the float 27 downwardly against the valveseat or bottom 25. The float 27 is of such a diameter that when it movesinto open position, the pulp being forced through the pipe 16 will passthereabout and outwardly through the outlet port 26. A guide member 35is carried by the top 29 and engages the stem 28 of the float 27. Awater pipe 36, which is connected at one end to a source of water supplydischarges at the opposite end into the pulp receiving compartment 14,and this end of the pipe '36 is open. As will be noted from the drawing,the bottom 25 of the cylindrical tank 24 is tapered or reduced so as toprevent trapping of the material in the lower portion of the tank.

A valve member 37 is interposed in the pipe 36 intermediate the tank orreservoir 11 and the source of water supply, and alever 38 is connectedto the valve stem of the valve 37, and is also connected to the floatstem 28 so that the valve 37 will be moved into open position when thefloat 27 rises under'the action of relatively heavy or thick pulp and islowered into substantially closed position when the pulp is relativelythin, the float 27 being lowered by reason of the weights 33 and 34. Aguide member 39 is carried by the pipe 36 and engages the lever 38.

In the use and operation of the device herein disclosed, the stock orpulp receiving chamber 14 is adapted to receive the pulp under thepressure of the pump and the valve 18 may be moved into the desired openposition depending on the quantity of pulp which it is desired to passor force through the pipe 16. When the pulp passes out of the dischargeopening 21 of the tank 11, it will flow through the pipe 16 and into theregulating container 24. The weights 33 and 34 are of such a characterthat when the pulp has the desired moisture content and is of thedesired degree of thickness, the float 27 will be disposed adjacent thebottom 25 of the tank 24. However, when the pulp gets thicker, the pulpin the controlling tank or member 24 will force the float 2'7 upwardlyand thereby open the water valve 37 and permit water to enter the stockchamber 14 until the pulp reaches the desired quality, whereupon thefloat 27 will be lowered under the action of the weights 33 and 34. Ifdesired, the upper weight 34 may be made a removable weight so that itmay be varied to suit the desires of the user of this device inobtaining a satisfactory moisture content in the paper pulp.

It will be apparent from the foregoing that this device herein disclosedwill automatically maintain an even degree in the quality of the paperpulp passing from the pulp making machine to the paper making machine sothat the pulp may be spread evenly and so that the pulp will flow at aneven rate to the paper machine.

It is, of course, understood that various changes and modifications maybe made in the details of construction and design of the abovespecifically described embodiment of this invention without departingfrom the spirit thereof, such changes and modifications being restrictedonly by the scope of the following claims.

What is claimed is:

1. An automatic regulator for paper making machines comprising areservoir, means for connecting the reservoir to a source of paper pulpsupply, a tank, means for connecting the tank to the reservoir, a waterpipe connected at one end to a source of water supply and having theother end discharging into said reservoir, a valve in said pipe, andmeans disposed in said tank and operatively connected to said valve toopen or close the valve dependent on the thickness of the pulp in thetank.

2. An automatic regulator for paper making machines comprising areservoir, means for connecting the reservoir to a source of paper pulpsupply, means disposed in the reservoir for returning the excess paperpulp, a tank, means for connecting the tank to the reservoir, means forregulating the quantity of pulp passing through the connecting means tothe tank, means for discharging water into the reservoir, a valve insaid water discharging means, a float in said tank, means for connectingthe float with said valve to open or close the valve on movement of thefloat, and weights carried by said float to move said float downwardlyfor closing of said valve.

3. An automatic regulator for paper making machines comprising areservoir adapted to be connected to a source of paper pulp supply, apartition in said reservoir, a return pipe carried by said reservoir toreturn the excess pulp discharged into the reservoir,- a tank, a pipeconnecting the tank with the reservoir, a valve carried by saidreservoir to control the quantity of pulp passing through the pipe intothe tank, a water pipe discharging into the reservoir, a valve in saidwater pipe, a float member in said tank, means for balancing the floatmember in the tank, and a lever connected to said float and said valveto open or close the valve on movement of the float.

4. An automatic regulator for paper making machines comprising a paperpulp reservoir, means for connecting the reservoir to a source of pulpsupply, means for returning the excess pulp discharged into thereservoir to the source of supply, a tank; means for connecting the tankto the reservoir, a valve carried by the reservoir for controlling thepassage of pulp to the tank, a water pipe discharging into thereservoir, a valve in said water pipe, a vertically movable float insaid tank, a stem secured to said float and extending upwardly throughthe tank, guide means for said stem, balancing means carried by thefloat to hold the float in a substantially fixed position within thetank when the paper pulp has the desired thickness, and means connectingthe stem with the valve to open or close the valve on movement of thefloat.

WILLIAM R. MORGAN.

